CVE-2025-29459Public exploitNetwork attack vector

Authenticated sensitive-data disclosure via Mail-function SSRF

Published Apr 17, 2025 · Updated Apr 23, 2025

SSRF in the Mail function in MyBB 1.8.38 allows remote authenticated users to read sensitive data through server-issued requests. The public report does not identify the Mail parameter or code path that reaches MyBB's fetch_remote_file() routine; MyBB documents host and IPv4 deny lists around that routine. Board-administrator access is required, and MyBB disputes the issue because administrators may perform the action and SSRF controls restrict private destinations.

CVSS severity7.6
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the Mail function in MyBB 1.8.38 allows remote authenticated users to read sensitive data through server-issued requests. The public report does not identify the Mail parameter or code path that reaches MyBB's fetch_remote_file() routine; MyBB documents host and IPv4 deny lists around that routine. Board-administrator access is required, and MyBB disputes the issue because administrators may perform the action and SSRF controls restrict private destinations.

The record

CVE
CVE-2025-29459
Published
Apr 17, 2025
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-918
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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